: , , , .
,
p = 0 + ρ⋅g⋅h, . 0 h ( 0, , ). .
- (
). : = ρ⋅g⋅h
() . = = = γ h. .
, . : = . 1 , .
́ , . . ().
?
ρ (/3): ρ = m/V
m , V , 3
+4 1000 /3. . , . , , 1000 /3.
γ (/3): γ = G / V
G - ( ), , V , 3.
g : γ = ρ g
?
. βp, : β p= − Δ W / W Δ P,
W ; ΔW ; Δp . , .
, βp,
|
|
K = 1 / βp
,
K = ρ * dP/ d ρ Κ/ ρ = dP/ d ρ = a 2
a , .
, .. . .
?
, αt , 1:
αt = Δ W / W Δ t,
Δt = t t0 - .
ρ t ρ = ρ0 / (1+ αΔ t), (1.8)
ρ0 t0.
. , . . .